package Demo01;

public class CharSequenceDemo01 {
    public static void main(String[] args) throws Exception{
        String str = "沐言科技：www.yootk.com";
        StringBuffer buffer = new StringBuffer(str);
        System.out.println("[StringBuffer]" +buffer);
        String message = buffer.toString();
        System.out.println("[String]"+message.toUpperCase());
    }
}
